Adhesive tape



Jan. 19, 1943. J GQLDMAN 2,308,693

ADHESIVE TAPE Filed pril 5, 1941.

Patented Jan. 19,

ADHESIVE TAPE Joshua H. Goldman, New Brunswick, N. 1., assignor to TheColumbia Mills, Inc., New York, N. Y., a corporation of New YorkApplication April 5, 1941, Serial No. 387,058

' 1 Claim. (CI. 28-80) This invention relates to adhesive tape, and hasfor its object to provide spaced incisions or perforations adjacent thelongitudinal edges of the tape, thereby forming weakened points so thetape can be easily torn transversely.

Another objectis to provide incisions or perforations adjacent thelongitudinal edges of the tape and in a manner whereby one or moreinwardly spaced threads are provided with interruptions for facilitatingtransverse tearing'of the tape and at the same time allowing the outercontinuous threads to conform to contents being bandaged or wrapped andwithout the disadvantages of ears which would be formed should the sidesof the tape be slit.

A further object is to provide an adhesive tape having transverse andlongitudinal threads and interruptions in the longitudinal threadadjacent the longitudinal edges of the tape, thereby weakening the edgesso the tape can be easily torn transversely. I

A still further object is to provide a tape having a base of high tearresistance which can be easily and readily torn transversely to providea bandage or strip of desired length leaving the torn edges straight,smooth, and clean.

With the above and other objects in view, the I invention resides in thecombination and arrangement of parts as hereinafter set forth, shown inthe drawing, described and claimed, it being understood that changes inthe precise embodiment of the invention may be made within the scope ofwhat is claimed without departing from the spirit of the invention.

In the drawing:

Fig. 1 is a perspective view of a roll of tape showing the perforationsadjacent the longitudinal edges thereof.

Fig. 2 is a plan view of the woven base of the adhesive tape, the weavebeing shown open for purposes of more clearly illustrating theinvention.

Fig. 3 is a detail perspective view, partly in section, on an enlargedscale and showing the severed thread.

Fig. 4; is an end view of a toothed roller which may be used forproviding the spaced perforations.

Fig. 5 is an enlarged top plan view of a portion of the tape, showingone of the perforations.

Referring now more particularly to the drawing, the numeral I designatesthe woven base material which comprises transverse threads 2 andlongitudinal threads 3 respectively, one side of the woven base i beingprovided with an adhesive coating 4, of any material.

In practice it has been found practically impossible at times to teartransversely adhesive tape, such as'used for surgical dressings, du tothe bunching of the longitudinal edge strands; consequently, thisbunching or ganging resists tear. To overcome this difllculty slits orperforations 5 are placed adjacent the longitudinal edges of the tape asshown in-Fig. 1 of the drawing,

and it will be noted that these slits or perforations are spacedinwardly from the-edges, preferably not more than three warp threadsremoved, thereby leaving continuous strands 6 at the edges of the tapeand interruptions l in one or more strands adjacent the strands B. Itwill be noted that continuous strands 6 will prevent the formation ofcars at the edges of the tape and will cause the tape to conform to thecontour of the member being dressed or wrapped, which would not be thecase if notches were placed in the edges. At the same time, when it isdesired to tear the strip transversely, the tearing operation willeasily break the outer strands, as they will not bunch with theinterrupted strands at the interruption 1, consequently the tape willeasily tear. transversely, and it will be obvious that the tape may beapplied directly from the roll and then severed by a shearing pullwithout the necessity of touching'the tape with the fingers. Two strandsare shown with interruptions 1, however it is to be understood anynumber may be used. Where a paper or other base is used, not

woven, the perforations may-be placed adjacent the edges of the strip.

The tape may be perforated in any suitable manner, and for purposes ofillustration, a toothed roll 8 is shown in Fig. 4, the teeth. 9 of whichpierce the tape as the roll is rotated. The perforating operation maytake place before or after the adhesive 4 is placed on the base,however, the perforations should be visible to the user so they can beeasily located for the transverse tearing operation. I

While in the present instance I have shown and described the inventionas applied to a surgical adhesive tape, it will be readily understoodthat the broad idea is also applicable to electricians tape and otherformswhich require that strips be severed from time to time.

From the above it will be seen that a surgical tape is provided whichmay be easily and quickly severed at predetermined points by a tearingoperation; that the predetermined points are visible to the operator atall times and the continuous strands at the longitudinal edges areeasily parted permitting a smooth clean tear, which would not be thecase if the interruptions I were in the outer strands.

The invention having been set forth what is claimed as new and usefulis:

As an article of manufacture, a long length of adhesive tape having awoven base, said base comprising longitudinally extending strands;transverse strands interwoven with said longitudinal strands,transversely alined thread interruptions spaced inwardly from oppositesides 01' the tape at substantially equally spaced intervals throughoutthe length or the tape, said interruptions being adjacent the oppositesides of the tape and forming transverse slits in the longitudinalstrands and weakened at spaced places transversely of the tape at spacedlongitudinal positions for facilitating the transverse tearing of thetape.

JOSHUA H. GOLDMAN.

